Sure, this is a great park for hiking along the Susquehanna River, climbing the hills, and riding a bike or horse along the miles of paths through the forest -- but the historic area is worth a visit, too. Start at the Jersey Toll House (now an information center for the park) for maps and to see if there are any closings. Also in this area are the Rock Run Grist Mill, built in 1794, the Rock Run Mansion which was under repairs at press time, and the Steppingstone Museum.